Subject	scientist
Predicate	try
Object	prevent
Modality	Modality Occurrences TBC[prevent like 1906 fransancisco earthquake] 1
Polarity	POSITIVE
Plausibility	0.0320
Neighborhood Sigma	0.0321
Local Sigma	1.0000
Example Sentences	Sentence Occurrences Source scientists are trying to prevent extinction 2 Google Autocomplete scientists are trying to prevent earthquakes 2 Google Autocomplete scientists are trying to prevent another similar disaster like the 1906 fransancisco earthquake 1 Answers.com Questions